Planificación Hídrica de la Cuenca Pampa Huari

The report details a comprehensive water management plan for the Pampa Huari Basin, utilizing a Robust Decision Support (ADR) framework to address vulnerabilities in water quality, quantity, and sanitation. It identifies critical pressures from mining and climate change, proposing five strategic lines of action including ecosystem restoration, sustainable water supply, irrigation modernization, mining impact mitigation, and institutional strengthening, with a total estimated investment of 145,537,813 Bs.

• The Pampa Huari Basin is characterized by semi-arid, arid, and altiplano ecological floors, with 'vegetación dispersa vivaz en arenales, pedregales y playas salinas' covering approximately 70% of the area.
• Climate projections for the 2022-2055 period indicate a general decrease in annual precipitation and runoff across three scenarios (wet, dry, and driest), with significant reductions in runoff during key months of October and November.
• Surface water quality in several tributaries is classified as 'Class E', meaning the water is unsuitable for human consumption even with treatment due to high contamination levels.
• Mining activity is a primary source of contamination, with 264 identified 'Pasivos Ambientales Mineros' (PAM), including 257 waste dumps (desmontes) and 7 tailings dams (colas/relaves).
• The basin faces severe sanitation vulnerabilities in rural areas, where approximately 80% of communities practice open defecation.
• Agricultural production is predominantly rain-fed (secano), and existing irrigation systems are often in poor condition, leading to food insecurity and low income for farming families.
• The plan prioritizes three micro-basins for integrated management: Kari Kari (Priority 1 for protecting Potosí's water sources), Santa Lucia (Priority 2 for erosion reversal), and Villacollo (Priority 3 for biodiversity and irrigation).
• A proposed reuse scenario for treated wastewater from the 'PTAR La Puerta' in the Huancarani hydrological unit could reduce the irrigation deficit from 104 lps to 54 lps.
• The total estimated investment for the five strategic lines of the Master Plan is 145,537,813 Bs, with the largest portion allocated to the 'Plan Maestro de Agua Potable y Alcantarillado Sanitario para la ciudad de Potosí' (793,730,596 Bs, though noted as part of a separate sector plan).
• Gender analysis reveals that women bear a disproportionate burden of water collection and face barriers to political participation and land titling, such as in Condoriri where daughters have fewer titling rights than sons.
• The basin is highly vulnerable to hydroclimatic risks, with frost (helada) being the most frequent threat (48 events) and floods affecting the largest number of inhabitants (10,410 people).

APA

Pérez, C. F., Balderrama, M., Trujillo, A. S., Moncada, A., Vega, B., Liera, C., Benítez, C. T., Coleoni, C., Purkey, D., Ayala, G., Angarita, H., Bellido, I., Sieber, J., Mosquera, J., González, J. G., Andersson, K., Claure, P., Forni, L., Fogde, M., ... Rodriguez, Y. (2022). Planificación Hídrica de la Cuenca Pampa Huari. Stockholm Environment Institute. https://www.sei.org/wp-content/uploads/2023/05/20230425-pdc-pampa-huarii-web-final-isbn.pdf

Chicago

Pérez, Cristo Facundo, Melina Balderrama, Adriana Soto Trujillo, Angélica Moncada, Blanca Vega, Carla Liera, Cecilia Tapia Benítez, et al. Planificación Hídrica de la Cuenca Pampa Huari. Stockholm Environment Institute, 2022. https://www.sei.org/wp-content/uploads/2023/05/20230425-pdc-pampa-huarii-web-final-isbn.pdf.

Wikipedia

{{cite report |last1=Pérez |first1=Cristo Facundo |last2=Balderrama |first2=Melina |last3=Trujillo |first3=Adriana Soto |last4=Moncada |first4=Angélica |last5=Vega |first5=Blanca |last6=Liera |first6=Carla |last7=Benítez |first7=Cecilia Tapia |last8=Coleoni |first8=Claudia |last9=Purkey |first9=David |display-authors=etal |title=Planificación Hídrica de la Cuenca Pampa Huari |publisher=Stockholm Environment Institute |date=September 2022 |url=https://www.sei.org/wp-content/uploads/2023/05/20230425-pdc-pampa-huarii-web-final-isbn.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{prez2022planificacin, author = {Pérez, Cristo Facundo and Balderrama, Melina and Trujillo, Adriana Soto and Moncada, Angélica and Vega, Blanca and Liera, Carla and Benítez, Cecilia Tapia and Coleoni, Claudia and Purkey, David and Ayala, Gustavo and Angarita, Héctor and Bellido, Ivana and Sieber, Jack and Mosquera, Jairo and González, Juanita Gómez and Andersson, Kim and Claure, Pamela and Forni, Laura and Fogde, Madeleine and Escobar, Marisa and Díaz, Natalia Ortiz and Quispe, Nilo Lima and Esquivel, Nhilce N. and Dickin, Sarah and Espinoza, Sophia and Santos, Tania and Rodriguez, Yesica}, title = {{Planificación Hídrica de la Cuenca Pampa Huari}}, institution = {Stockholm Environment Institute}, year = {2022}, month = sep, url = {https://www.sei.org/wp-content/uploads/2023/05/20230425-pdc-pampa-huarii-web-final-isbn.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }